NYMag.com interviews a Florida woman who is a “short sleeper,” meaning she has a genetic mutation that causes her to need less sleep than the average person.
Nobody knows exactly how many true “short sleepers” exist, but estimates put it at one percent of the population. They wake refreshed and energized after just a few hours of sleep, and those who have been studied tend to pack their lives with tasks that they perform well unaided by stimulants or other crutches. For instance, the very productive Thomas Edison may have been a short sleeper. “Cells don’t sleep,” he said in his most quoted anti-sleep rant. “Fish swim in the water all night. Even a horse doesn’t sleep. A man doesn’t need any sleep.”